PA has beautiful scenery. If you like the great outdoors then this is the best state in the mid-atlantic bar none. There are also tons of little charming towns. Central PA is very nice.
Avoid any large town ESPECIALLY PITTSBURGH. Big towns/cities in this state are a stark contrast to how nice the rest of the state is. Pittsburgh looks like it was hit with a nuculear bomb. Philly is a dump too. Allentown, Harrisburg, Scranton, little washington, etc are all total hell holes as well.
Final Thoughts: Where there's a large concentration of people, it sucks. Rural areas and small towns are beautiful. Exept the ones near Pittsburgh. Forget visiting any town within a 30 mile radius of that city. All of it is total sh!t.